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$ sudo aide --check
Start timestamp: 2018-07-11 12:41:20 +0200 (AIDE 0.16)
AIDE found differences between database and filesystem!!
$ sudo aide --update
$ sudo mv /var/lib/aide/aide.db.new.gz /var/lib/aide/aide.db.gz
05 4 * * * root /usr/sbin/aide --check
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Added entries:
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Add the following line to the `/etc/crontab` file:
After verifying the changes of your system such as, package updates or configuration files adjustments, update your baseline *AIDE* database:
At a minimum, *AIDE* should be configured to run a weekly scan. At most, *AIDE* should be run daily. For example, to schedule a daily execution of AIDE at _04:05_ a.m. using the *cron* command, see the xref:f{MAJOROSVER}@fedora:system-administrators-guide:monitoring-and-automation/Automating_System_Tasks.adoc[Automating System Tasks] chapter in the System Administrator's Guide.
End timestamp: 2018-07-11 12:37:35 +0200 (run time: 1m 48s)
f++++++++++++++++: /etc/cups/subscriptions.conf.O
...
[output truncated]
For additional information on *AIDE*, see the following documentation:
In the default configuration, the *aide --init* command checks just a set of directories and files defined in the `/etc/aide.conf` file. To include additional directories or files in the AIDE database, and to change their watched parameters, edit `/etc/aide.conf` accordingly.
link:http://aide.sourceforge.net/stable/manual.html[The AIDE manual]
link:https://static.open-scap.org/ssg-guides/ssg-sl7-guide-ospp-rhel7-server.html#xccdf_org.ssgproject.content_group_aide[Guide to the Secure Configuration of Red Hat Enterprise Linux 7 (OpenSCAP Security Guide): Verify Integrity with AIDE]
Performing Integrity Checks
Summary:
Total number of entries: 150667
Added entries: 1
Removed entries: 0
Changed entries: 2
The *aide --update* command creates the `/var/lib/aide/aide.db.new.gz` database file. To start using it for integrity checks, remove the `.new` substring from the file name.
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The attributes of the (uncompressed) database(s):
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To avoid SELinux denials after the AIDE database location change, update your SELinux policy accordingly. See the link:https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/SELinux_Users_and_Administrators_Guide/[SELinux User's and Administrator's Guide] for more information.
To change the location of the *AIDE* database, edit the `/etc/aide.conf` file and modify the `DBDIR` value. For additional security, store the database, configuration, and the `/usr/sbin/aide` binary file in a secure location such as a read-only media.